LLGemini

摘要： C++/STL中定义的next_permutation和prev_permutation函数是非常灵活且高效的一种方法，它被广泛的应用于为指定序列生成不同的排列。next_permutation函数将按字母表顺序生成给定序列的下一个较大的排列，直到整个序列为降序为止。prev_permutation... 阅读全文

摘要： Since ancient time, people have been dreaming of flying in the sky. Eventually, the dream was realized in the 20th century. Nowadays, the airplane bec... 阅读全文